Students investigate how lines, angles, and shapes can help an object stand, balance, or move as they design and improve a model through repeated testing. Through hands-on building, partner talk, and ideas from the Fleet Science Center, they connect physical science and geometry to real classroom problems. The experience helps young learners use new vocabulary about position, direction, balance, and strong or weak structures while making design choices and revisions. By the end, students create and share a model that works better because of the geometric changes they made.

Students investigate how lines, angles, and shapes such as triangles, squares, and arches affect whether a model stands, balances, or moves. They build and revise simple structures with paper, straws, and craft sticks, using tests to explain why a design is strong, weak, balanced, or unstable. Students use position, direction, balance, and shape vocabulary to describe their ideas, drawings, and partner discussions, including new learning from the Fleet Science Center. They apply feedback from each trial to improve a model and share how geometry helped solve a motion or structure problem.

Students will create Build and Balance Lab sketches, labeled geometry-and-science observation pages, and quick revision drawings after each test and after the Fleet Science Center visit or virtual connection. In pairs or small groups, they will build and improve models from paper, straws, and craft sticks that use lines, angles, triangles, squares, arches, and other simple shapes to stand stronger, balance better, or move farther. They will also prepare simple presentation tools for the Lines, Angles, and Action Fair, such as labeled diagrams, before-and-after comparisons, and short oral explanations of what changed and why. By the end, each team will produce a final tested model and a small set of drawings and labels that show how geometry helped solve a structure or motion problem.

Begin with a Build and Balance Lab where small groups use paper, straws, and craft sticks to make a structure that must stand, balance, or move in one simple way. Invite students to test different lines, angles, and shapes such as triangles, squares, and arches, then name what seemed strong, weak, steady, or wobbly using direction and position words. After a short share-out, introduce the questions about how geometry can help objects move, balance, or stay strong, and tell students they will gather new ideas from the Fleet Science Center visit or virtual connection. End with a quick sketch-and-label of their first design so they can compare it to later revisions.

Host a Lines, Angles, and Action Fair where students rotate through roles as presenters, demonstrators, and reflection hosts for families, classmates, and Fleet Science Center guests or virtual partners. Each team shows its final model, demonstrates how it stands, balances, or moves, and points out the lines, angles, and shapes they changed after testing and after learning a new idea from the science center connection. Add simple display cards with drawings, labels, and sentence frames such as “Our shape helped because…” and “We changed ___ so it would ___.” Include a hands-on station where visitors try a small balance or motion challenge and listen as students explain what makes a structure strong or weak.