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224 discoveries in this collection
Move an object through the focal plane and connect signed distances with image orientation and magnification.
Compare the angles to the normal and locate the boundary between refraction and total internal reflection.
Adjust molecular coefficients for water formation and compare hydrogen and oxygen atoms on each side.
Track acid and base equivalents through a one-to-one neutralisation and test excess reagent.
Test a four-metal ordering and compare the metal remaining in solution with the deposited metal.
Switch between series and parallel connections; audit current, voltage and power together.
Follow gravitational, kinetic and dissipated energy as an ideal cart descends a ramp.
Compare turning moments about a pivot and calculate the effort needed to balance a load.
Vary a perpendicular load and its contact area; compare pressure with a visible unit conversion.
Compare an isolated pair with different heat capacities and audit the energy exchanged.
Compose clockwise or anticlockwise turns and distinguish total movement from final heading.
Move a point and reflect it across either coordinate axis; compare distances to the mirror.
Combine two signed number-line moves and compare final position, displacement and distance travelled.
Change coefficients and connect the discriminant, vertex and real roots with the graph.
Build an arithmetic progression and compare its nth term with the sum of all terms so far.
Move the endpoint of a segment from the origin and compare distance, midpoint and internal division.
Scale a right triangle and compare corresponding sides, perimeter and area.
Build a right-triangle sightline and include the observer’s instrument height.
Change a circle slice’s radius and angle, and compare its arc, sector and perimeter.
Compare capacity and exposed surface area of ideal solids with common dimensions.
Change one observation in an original dataset and compare centre, spread and group membership.
Draw with replacement from a two-colour bag and compare a reproducible sample path with exact probability.
Redistribute a fixed fictional income total and compare averages, median and access to a public service.
Compare transparent fictional repayment models, including a fee, without collecting financial data.
Compare fictional routes using distance, per-unit transport cost and fixed terminal charges.
Allocate a fictional 100-hectare landscape, inspect a transparent runoff comparison and retain a visible unallocated reserve.
Transform original statements under an explicit reporting frame and track person, tense and time references.
Compare ability, permission, obligation and possibility in a stated original context.
Compare original countable and uncountable nouns with determiners and inspect complete sentence examples.
Vary an original survey and choose wording whose scope stays within the evidence.
Compare multiplication and division of two positive fractions using exact reduced results.
Scale an exact thousandths value by powers of ten, then compare the exact result with a chosen rounding.
Pack indivisible counters into equal boxes and compare full boxes, leftovers and boxes needed for everything.
Build two adjacent blocks with the same row count and reconnect their partial products.
Compare repeated multiplication with the exponent predicted by the selected operation.
Partition a square into two smaller squares and two cross-term rectangles.
Keep opposite edges parallel while changing the horizontal offset of the top edge.
Compare a candidate triangle with a fixed 3–4–5 reference using all three side lengths.
Build three frequency classes and compare midpoint calculations with a possible within-class population.
Plan an original journey using a 24-hour clock and retain the day change separately.
Move a probe around an ideal dipole and reverse the magnet while comparing field direction and relative strength.
Follow an original heat-token budget through melting, warming liquid and vaporisation.
Apply different property tests to a small set of explicitly described samples.
Construct a straight open carbon chain with one selected single, double or triple bond and satisfy each carbon’s valence.
Measure a fictional bath with a selectable resolution and a known calibration offset.
Rotate a model Earth and compare two equatorial places on opposite sides.
Audit a fictional bridge-opening claim through copied reports, independent records and a conflicting dated record.
Compare fictional prices, pack quantities and a discount on the same commodity.
Compare an original observation-recording sentence across a habit, ongoing action, finished past event and present result.
Build an original event plan, compare will and may, and keep the condition separate from its consequence.
Explore eleven connected organ systems, inspect enlarged cutaways and test eleven mechanisms with a laboratory notebook.
Explore a miniature habitat. Connect roots, leaves and animal features to water and shelter.
Build a model plate and discover how food sources contribute to variety.
Follow rain through a small landscape and compare covered and bare ground.
Test observable traits across plants, animals and a fungus. Build a better comparison key.
Compare food-group proportions, variety and the limits of a simplified meal model.
Open a bean seed, adjust its surroundings and investigate what supports germination.
Step through butterfly, frog and bean development and compare changing body forms.
Move from leaf to internal tissues; test limiting resources and trace water transport.
Connect digestion, breathing, circulation and excretion in a selectable organ model.
Explore a respectful growth sequence, hormonal messages and individual variation.
Explore enlarged plant, animal and root cells; connect structures to their roles.
Inspect different microbe forms and test a token model of growth and removal.
Change producer, herbivore and predator tokens and follow bounded feeding transfers.
Connect soil, water, atmosphere and vegetation through a conserved water budget.
Inspect cell cutaways and test the initial direction of water movement across a membrane.
Compare transport tubes, muscle fibres and signalling cells through structure and function.
Challenge a simple trait key and explain why classification uses several characteristics.
Inspect a flower cutaway and distinguish pollen arrival, fertilisation and seed formation.
Test how exchange, absorption, transport and kidney water handling depend on one another.
Trace a reflex arc, interrupt the pathway and compare neural and chemical messages.
Connect gametes to allele inheritance using a complete four-pairing model. Formative exploration.
Investigate feeding transfers, interdependence and the limits of an environmental model.
Split, compare and discover why different fractions can name the same amount.
Connect the components, close the switch and investigate a continuous electrical path.
Reconstruct a fictional school’s past from dated records and a conflicting memory.
Change rainfall and land cover, then follow the water through a small catchment model.
Fund competing needs with a fixed budget and make the trade-offs visible.
Read an original passage and choose the evidence that supports an interpretation.
Turn a leaf, inspect its surface and open its layers to connect structure with gas exchange.
Compare enlarged plant and animal cutaways and test the function of a distinguishing structure.
Move between a position, a measurement and a graph while changing one parameter at a time.
Compare solid, liquid and gas representations while keeping the same particle identities.
Scale a quantity and its cost, then test a fixed-fee counterexample.
Change relative light and carbon dioxide availability, then explain a plateau in a disclosed rate model.
Measure a fictional route and use a stated scale to find its represented distance.
Compare procedures for a fictional shared decision and identify an inclusive process.
Compare wanted and offered quantities, then test how a shift changes a toy market intersection.
Construct original sentences and diagnose agreement when an intervening noun distracts you.
Order dated events and separate documented sequence from a claim needing more evidence.
Run a rover cargo experiment, record fair comparisons and predict how net force moves a different load.
Investigate a pressure signal, track material markers and compare frequency without confusing it with speed.
Build an isotope and an ion by changing the correct particles, with both dragging and keyboard controls.
Plan a multi-stage separation and account for sand, dissolved salt and water in every resulting container.
Compare a selective membrane with a blocked control and track water separately from solute.
Keep a signed algebraic equation equivalent through valid operations, then check a new solution in the original expressions.
Navigate an original neighbourhood with cardinal directions, read its key and adapt a route around closed paths.
Compare two invented station records, calculate seasonal summaries and challenge a headline that confuses weather with climate.
Edit fictional ballot counts, audit constituency winners, and compare aggregate votes with seats without inventing a winner in a tie.
Choose production, price and promotion under budget and time constraints, then stress-test the plan when demand falls.
Evaluate competing original documents, calculate a sample proportion, calibrate a claim and test a survey headline on a new case.
Exchange ten-for-one tokens, conserve a visible cargo ledger and regroup through empty places before dispatching a shipment.
Design arbitrary connected patchwork, retain contrasting layouts and investigate how shared edges change a boundary.
Trace actual landing sets, compare two jump-size pairs and solve a route with required destinations and a forbidden stop.
Construct independent chord bisectors, compare equal radii and test a report whose three rim marks become collinear.
Author two ticket constraints, build an elimination ledger, substitute a common solution and construct three kinds of line pairs.
Control a chest model, compare fair trials and trace two gases before explaining where energy is released.
Construct a loop, follow the same blood courier and compare pumping with no pumping while oxygen cargo is exchanged.
Partition a whole into equal parts, compare their size and connect a picture with a point on a number line.
Build a complete conducting path. Observe how an open switch, an absent component or a changed resistance affects the model.
Arrange dated clues from a fictional village school archive and compare a record with a recollection.
Explore how rainfall, vegetation and land cover affect a simplified catchment. Read the diagram as a model, not a forecast.
Allocate a fixed community budget. Compare what can be funded and identify the next-best choice you forgo.
Move from a first impression to a supported interpretation by reading an original passage closely.
Compare equivalent ratios and ask whether doubling one quantity must double another.
Compare reasons, notice who is affected and explain how participation shapes a public choice.
Make a prediction, control a variable and record evidence. Compare what a model shows with the question it can answer.
Explore a whole leaf, enlarged surface and opened internal layers in an original 3D schematic.
Compare enlarged cutaways and inspect structures through the model or an equivalent text interface.
Change velocity and time, then explore a constant-acceleration extension with consistent measurements.
Compare qualitative particle arrangements while keeping particle identities fixed.
Change relative resource availability and inspect a disclosed, uncalibrated classroom rate model.
Translate a measured map distance into a represented distance with units.
Shift two invented curves and compare shortages, surpluses and their intersection.
Manipulate original sentences and justify a verb using the subject rather than proximity.
Order documented events and compare what an account can establish with what needs further evidence.
Design a controlled investigation with actual recorded force–mass trials.
Compare a pressure trace with the longitudinal motion of material markers.
Construct particle-count models and separate nucleon count from charge.
Recover components of an original cargo and inspect every retained fraction.
Track water volume and solute amount separately across controlled membrane runs.
Keep a signed algebraic equation equivalent through valid operations, then check a new solution in the original expressions.
Navigate an original neighbourhood with cardinal directions, read its key and adapt a route around closed paths.
Compare two invented station records, calculate seasonal summaries and challenge a headline that confuses weather with climate.
Edit fictional ballot counts, audit constituency winners, and compare aggregate votes with seats without inventing a winner in a tie.
Choose production, price and promotion under budget and time constraints, then stress-test the plan when demand falls.
Evaluate competing original documents, calculate a sample proportion, calibrate a claim and test a survey headline on a new case.
Exchange ten-for-one tokens, conserve a visible cargo ledger and regroup through empty places before dispatching a shipment.
Design arbitrary connected patchwork, retain contrasting layouts and investigate how shared edges change a boundary.
Trace actual landing sets, compare two jump-size pairs and solve a route with required destinations and a forbidden stop.
Construct independent chord bisectors, compare equal radii and test a report whose three rim marks become collinear.
Author two ticket constraints, build an elimination ledger, substitute a common solution and construct three kinds of line pairs.
Compare controlled chest movements, test a sealed-airway counterfactual and distinguish gas exchange from energy release.
Build a transport loop, trace a conserved blood courier and test matched pump on/off conditions.
Explore equal parts and compare the amount represented by a fraction.
Follow water through a landscape. The lab is an original simplified model.
Consider how a community listens, shares space and makes everyday decisions.
Use parts, lengths and a number line to reason about equivalent fractions.
Connect observations about water with a simple model. Watershed exploration is a related extension, not a full lesson on changes of state.
Sequence events and compare what different historical sources can establish.
Use a landscape model to ask how land and water influence one another.
Explore why shared decisions need participation and reasons.
Connect everyday work and limited resources. The allocation activity is an introductory extension.
Revisit representations before applying operations to fractional quantities.
Investigate a continuous conducting path and the role of a switch.
Connect landscape patterns with water movement using an illustrative terrain model.
Practise identifying what a source supports before making a claim about the past.
Ask how rules and participation shape shared decisions.
Consider choices and constraints in economic life through an original allocation scenario.
Connect ratios, scale factors and equivalent fractions.
Revisit current and a closed path before studying its effects. The circuit lab does not model magnetic fields.
Investigate how land cover influences a simplified water budget.
Use source-checking skills to separate a supported claim from an assumption. The fictional archive is method practice, not a simulation of colonial India.
Consider how participation and representation affect collective decisions.
Connect limited productive resources to choices about their use.
Use fraction representations as a foundation for reasoning about rational numbers.
Original preparation pathway: control a variable, observe a result and evaluate a model. The newly audited IX science chapters now have separate subject pathways.
Explore water as an agent that moves across and shapes land.
Practise chronology and evaluate material evidence. The archive lab develops method, not the full content of this theme.
Compare ways of sharing decisions and making participation meaningful.
Investigate scarcity, choice and opportunity cost through a limited-budget model.
Revisit ratios and proportional reasoning as preparation for similarity. A complete triangle-similarity lab is planned.
Relate voltage, resistance and current in an ideal circuit. Model assumptions remain visible.
Practise chronology and source evaluation before interpreting historical accounts. The archive lab is a fictional method exercise, not a Nationalism in India lesson.
Explore water availability through a small catchment model and discuss its limits.
Examine reasons to include different voices in collective decisions.
Use a budget scenario to compare goals and opportunity costs. Its scores are teaching assumptions, not development indicators.
Read a short original passage, choose the detail that supports an interpretation and explain your reasoning.
Read a short original passage, choose the detail that supports an interpretation and explain your reasoning.
Read a short original passage, choose the detail that supports an interpretation and explain your reasoning.
Read a short original passage, choose the detail that supports an interpretation and explain your reasoning.
Read a short original passage, choose the detail that supports an interpretation and explain your reasoning.
Read a short original passage, choose the detail that supports an interpretation and explain your reasoning.
Connect leaf structures, gas exchange and photosynthesis through original educational models.
Measure distance and time, compare speeds and connect a moving object with a graph.
Compare how a disclosed particle model represents solids, liquids and gases.
Compare enlarged plant and animal cells, relating selected structures to their functions.
Distinguish position, displacement and distance, and test a constant-acceleration model.
Revisit selected plant nutrition, ventilation, gas exchange and pumping/transport relationships through bounded original investigations.
Compare quantity demanded and supplied in an original one-good market model.
An original spatial-reasoning pathway for applying proportional reasoning to a map.
Identify the subject, choose a verb and diagnose agreement errors in original sentences.
Investigate net force, mass and acceleration through controlled cargo trials.
Connect a pressure trace, longitudinal movement, frequency and wavelength.
Build particle-count representations and distinguish isotope changes from charge changes.
Plan and perform a multi-stage separation while retaining and accounting for every fraction.
Keep a signed algebraic equation equivalent through valid operations, then check a new solution in the original expressions.
Navigate an original neighbourhood with cardinal directions, read its key and adapt a route around closed paths.
Compare two invented station records, calculate seasonal summaries and challenge a headline that confuses weather with climate.
Edit fictional ballot counts, audit constituency winners, and compare aggregate votes with seats without inventing a winner in a tie.
Choose production, price and promotion under budget and time constraints, then stress-test the plan when demand falls.
Evaluate competing original documents, calculate a sample proportion, calibrate a claim and test a survey headline on a new case.
Selected source-inspected conceptual investigation from the current Maths Mela chapter.
Selected source-inspected conceptual investigation from the current Maths Mela chapter.
Selected source-inspected conceptual investigation from the current Maths Mela chapter.
Selected source-inspected conceptual investigation from the current Maths Mela chapter.
Construct independent chord bisectors, compare equal radii and test a report whose three rim marks become collinear.
Author two ticket constraints, build an elimination ledger, substitute a common solution and construct three kinds of line pairs.
Investigate ventilation, gas exchange and the pumping role in transport through bounded original process boards.
Make patterns visible. Test a conjecture, compare representations and explain why it works.
Change one variable, observe carefully and build an explanation from evidence.
Class V connects nature, communities and everyday life through one integrated subject.
Connect places, people, the past, governance and economic life. Explore distinct areas within an integrated subject.
Read closely, support an interpretation and discover what words can reveal.
Reconstruct the past through sources and chronology. An inquiry area within Social Science.
Read landscapes and investigate relationships between people, water and land.
Investigate public choices, representation and the reasons we share decisions.
Explore scarcity, opportunity cost and the consequences of competing choices.
Start with a question. Discover equal shares, living landscapes and stories supported by clues.
Build strong foundations. Compare models, investigate sources and notice connections.
Test your ideas. Connect a circuit, reason with fractions and explore the systems around you.
Think in systems. Compare changing quantities and explore how one decision affects another.
Question the model. Link evidence, assumptions and trade-offs in the new secondary curriculum.
Explain with precision. Apply foundational ideas and evaluate what your model can and cannot show.