INPUT: [TOPIC]: Introduction to gravity and forces OUTPUT: Kindergarten K to 2: Learning Objective: Students can describe that objects fall down when dropped because of gravity. Materials: Balls, feathers, rocks, ramps, recording sheet with pictures. Duration: 30 minutes. Activity Step 1: Drop different objects and observe which falls faster — discuss why as a class. Activity Step 2: Roll balls down ramps of different heights and observe distance traveled. Activity Step 3: Draw a picture showing objects falling and label with teacher support. Assessment: Verbal explanation of what gravity does to objects. Elementary Grades 3 to 5: Learning Objective: Students can explain how gravity pulls objects toward Earth and affects motion. Materials: Spring scales, various objects, ramps, rulers, data sheets. Duration: 45 minutes. Activity Step 1: Weigh objects using spring scales and record data in a table. Activity Step 2: Roll objects down ramps at different angles and measure distance traveled. Activity Step 3: Graph results and identify the pattern between ramp angle and distance. Assessment: Completed data table and one written conclusion sentence. Middle School Grades 6 to 8: Learning Objective: Students can calculate gravitational force using F equals mg and apply it to real-world scenarios. Materials: Calculators, mass scales, worksheets, metre rulers. Duration: 60 minutes. Activity Step 1: Measure mass of objects and calculate weight using gravitational formula. Activity Step 2: Design a controlled experiment testing how mass affects falling speed. Activity Step 3: Analyse data, identify variables, and draw evidence-based conclusions. Assessment: Lab report with hypothesis, data, and conclusion paragraph. High School Grades 9 to 12: Learning Objective: Students can apply Newton's Law of Universal Gravitation to calculate force between two masses. Materials: Calculators, formula sheets, problem sets, graphing tools. Duration: 70 minutes. Activity Step 1: Review Newton's gravitational formula and solve 3 guided practice problems together. Activity Step 2: Analyse gravitational force between planets using real astronomical data. Activity Step 3: Calculate escape velocity for different celestial bodies and present findings. Assessment: Problem set with 5 multi-step gravitational calculations. Advanced AP and Gifted: Learning Objective: Students can derive gravitational field equations and apply them to orbital mechanics and satellite motion. Materials: Graphing calculators, orbital data sets, research papers. Duration: 90 minutes. Activity Step 1: Derive the relationship between gravitational force and orbital period mathematically. Activity Step 2: Analyse real satellite orbit data and calculate orbital velocities and periods. Activity Step 3: Design a theoretical satellite orbit and justify all calculations with annotated working. Assessment: Written analysis comparing two satellite orbits with full mathematical justification.