Wooden Clamp & Catapult: 2 STEM Lessons
Digital woodworking lesson pack. An adult prepares or orders the wooden parts before class. No physical kit is supplied or shipped.
The clamp includes written instructions and drawings only; no clamp video. One English-subtitled catapult video is included. Use a fully cured demonstration model for testing; children’s glue-ups may need to finish curing after class.
WHO IT IS FOR
For teachers, clubs and homeschool groups. Two adult-led lessons in English for ages 7-11; adapt tasks to individual readiness.
WHAT CHILDREN PRACTISE
Clamp: sequence layered parts, dry-fit moving joints, align edges, apply a thin glue layer and clamp a glue-up.
Catapult: identify a frame, lever and axle; investigate elastic-powered motion and compare launches using a light, soft paper ball.
LESSON TIME
Wooden clamp: 45 minutes. Desktop catapult: 60 minutes. Timings are lesson-plan estimates; full glue/finish curing is additional.
PREPARATION TIME
Planning estimate: 20-30 minutes per lesson to check and lay out ready-made kits and tools for 6 children; not a measured time. Make and test a sample before first use. Ordering, cutting, drilling, trial assembly and glue/finish curing take additional time.
TOOLS AND SUPPLIES TO HAVE
For the sessions: safety glasses, P120/P180 sanding blocks, pencil and millimetre ruler, wood glue, glue brushes, wipes and two serviceable clamps per active glue-up. Also prepare a demonstration quick-release clamp, smooth wood block, a cured catapult model, soft paper balls and a target with a backstop.
BEFORE CLASS: ADULT PREPARATION
An adult or local workshop cuts the shaped clamp parts, cuts and drills the catapult parts, adjusts fits and checks axle retention. If making parts yourself, use a suitable profile-cutting process, drilling equipment, clamps/fixtures and dust control. Power tools are not needed at the children’s assembly tables when parts arrive ready to use.
DOWNLOAD CONTENTS
Lesson plans, assembly guides, parts lists, PDF drawings and CAD files for both projects, plus shared safety, tools, US/European sourcing, workshop-ordering and kit-check guides. Videos use English subtitles and music, with no spoken voice.
18 PDFs (36 pages), CAD files and 1 MP4 video in one ZIP. Extract before use. Dimensions: mm. Print full-size templates at 100%. Shared guides cover the wider series; only the two named projects are included.
USE PERMISSIONS
TES Teaching Resource Licence applies. Standard licence: one teacher and their students. Select the TES School Licence for institutional sharing. No redistribution or resale beyond the selected licence; ask Skilled Makers via TES before external workshop sharing not covered by it. Third-party licences and mandatory legal rights are unaffected.
Wood, tools, glue, rubber bands, fasteners and other physical supplies are not included.


