Unit 5 — Forces and Motion: Designing Ramps

• Prediction statements about how ramp angle or surface will affect rolling.
• Data tables from testing different materials and angles.
• Graphs of distance traveled under different conditions.
• Student observations and reasoning about results.

A completed ramp design meeting specified criteria (distance, safety, materials used) with supporting data graphs and written explanation of how design features were chosen.

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Students may demonstrate understanding through a hands-on ramp building task with teacher guidance and verbal explanation of their design choices instead of written explanations. Visual supports such as picture cards showing different angles, materials, and outcomes may be provided to aid prediction and data recording.

During hands-on ramp building and testing, provide visual step-by-step task cards that break the engineering design process into smaller, manageable steps so students can work with greater independence. Allow students to share predictions, observations, and design reasoning through oral responses or dictation rather than written recording, and offer pre-structured data tables with picture cues to reduce the writing demand of data collection. Scaffolded sentence frames can support students in explaining how friction and gravity affected their ramp's performance during both formative checks and the summative explanation.

Provide preferential seating during whole-group demonstrations of ramp testing to ensure clear sightlines and reduce distraction. Allow extended time for completing data tables and graphs, and offer a quiet or low-distraction workspace during the summative design task. Printed copies of any directions or criteria displayed on the board ensure students can reference expectations independently throughout testing and reflection.

Support understanding of key unit vocabulary — such as force, friction, gravity, angle, and surface — with a illustrated word wall or personal vocabulary reference card that pairs each term with a picture and simple definition. Use physical demonstrations and gesture-based explanations when introducing new concepts, and provide simplified, visually supported directions before each phase of ramp testing. Encouraging students to discuss predictions and observations with a bilingual partner or in their home language before sharing with the group helps bridge meaning and build confidence.

Begin ramp investigation by connecting to students' prior experiences with slides, hills, or toy cars to activate relevant background knowledge before introducing new vocabulary and concepts. Offer simplified data tables with fewer variables to record at a time, and pair students with a supportive partner during building and testing so they can participate fully in the hands-on work. Focus early success on concrete observations — such as noticing whether a ball went far or short — before gradually introducing more abstract comparisons across trials.

Invite students to investigate the relationship between two or more variables simultaneously — such as how changing both angle and surface material together affects distance — and to form and test their own hypotheses beyond the provided criteria. Students can be challenged to design a ramp that meets a more complex or self-imposed constraint, such as the slowest possible roll that still reaches the target, and to communicate their design rationale using their data as evidence. Connecting ramp physics to real-world engineering contexts, such as how road designers manage steep grades or how playground equipment is made safe, encourages deeper thinking about the purpose and tradeoffs of design decisions.