Primary Index Card Tower STEM Challenge | Height ÌÇÐÄVlogt Activity | KS1 & KS2

A hands‑on STEM challenge where learners design, build, test, and improve an index card tower while exploring structure, supports and height.

A simple STEM challenge where learners design, build, test, and improve a tower using only index cards. Low‑prep and ideal for primary classrooms, home learning, or STEM tubs.

WHAT’S INCLUDED:
• 3‑page STEM Challenge set: Cover Page, Instructions Page, Activity Page
• 9‑Point Engineering Graph for comparing two tower designs
• Clear directions for real classrooms
• Kid‑friendly layout for independent exploration
• Printable PDF (A4/Letter compatible)

SKILLS DEVELOPED:
• Engineering design process
• Planning and sketching a tower
• ÌÇÐÄVlogting height and stability
• Comparing performance after design changes
• Recording results using a structured 9‑point graph

HOW IT WORKS:
Learners build one version of their tower, test its height, and record the results. Then they change one part of the design—such as shape, folds, base width, or support structure—and test again. They sketch both versions, note the change, and compare results using the 9‑Point Engineering Graph. The open layout supports drawings and observations.

The challenge naturally scales: younger learners build simple towers, while older learners experiment with shapes, folds, supports, and base strength to improve stability and height.

LEARNING CONCEPTS:
• Structure, supports, and height
• How shapes and folds affect strength
• ÌÇÐÄVlogting and comparing designs
• Improving designs based on results

Curriculum Links: Supports early engineering, forces, stability, gravity, and simple investigations involving height and structure.
STEM Vocabulary: structure, stability, height, gravity, base, support, design, test, improve
Differentiation: Works well for KS1 learners and naturally extends for KS2.

TEACHER BENEFITS:
• Clear instructions
• Minimal prep with easy‑to‑source materials
• Works for small groups, centres, early finishers, or whole‑class use
• Flexible materials allow easy adaptation
• Clear routines support independent work

PRINTING & PREP:
• Print pages single‑sided
• Provide index cards and tape
• Adult supervision recommended for raised testing
• ÌÇÐÄVlogt in open areas away from faces and breakables

AGE RANGE:
Suitable for ages 5–11 (Primary). Younger learners can participate with support.
Aligned for KS1 learners, with natural extension options for KS2.
Supports ESL learners with simple language and hands‑on tasks.

PERFECT FOR:
• STEM centres
• Classroom STEM tubs
• Early finishers
• Makerspace stations
• Home learning
• After‑school clubs
• Family STEM nights

FILE DETAILS:
• PDF format (non‑editable)
• Instant digital download
• No physical item shipped

TERMS OF USE:
For personal and single‑classroom use only. Not for resale, redistribution, or commercial use.