The Gadgeteers: The Wedge That Wouldn't Work (Book5 in The Gadgeteers Series)

A jamming door. A real-world mystery. And a team of curious kids ready to fix it.

When a worn-down wedge no longer holds the classroom door open, the Gadgeteers step in. Maya, Leo, Sasha, and Benji investigate why the small wooden wedge fails-even causing disruptions during class. Using science, strategy, and teamwork, they test different shapes, materials, and angles to build a better wedge. With hands-on experiments, clear explanations, and a glossary of key terms, this upbeat STEM mystery helps young readers learn how a simple machine makes life easier.Perfect for ages7-10 (grades2-4)Explores wedges, angle, friction, and mechanical advantageEncourages critical thinking and real-world problem solvingIdeal for classrooms, homeschool, and budding engineersThey triumph in their mission, earning praise from the principal-and discovering a broken windmill gear waiting at the garden door. The Gadgeteers are ready for their next adventure!