Learn Littles • Daily Worksheet
5th Grade
Deeper reading, structured writing, fractions, and multi-step problem solving
Worksheet for 2026-09-17
📖 Why Bridges Use Triangles
A triangle keeps its shape unless the lengths of its sides change. Rectangles can deform more easily unless they are braced. Engineers use triangular trusses to distribute forces through connected members. This can create strong structures without requiring solid walls.
1. What key idea begins the explanation?
2. What mechanism or supporting detail is described?
3. What additional evidence or effect is given?
4. How does the final detail deepen the explanation?
✏️ Writing
Write 1–2 developed paragraphs explaining why bridges use triangles. Use evidence and cause-and-effect reasoning.
➕ Math
🎨 Color & Create
Create a labeled model or diagram that explains why bridges use triangles.
View Answer Key
📖 Reading Answers
- A triangle keeps its shape unless the lengths of its sides change.
- Rectangles can deform more easily unless they are braced.
- Engineers use triangular trusses to distribute forces through connected members.
- This can create strong structures without requiring solid walls.
➕ Math Answers
- 7/7
- 5/7
- Examples: 4/6, 6/9, 8/12
- 3/4, because 0.75 > 0.6