👩‍🏫 Teacher’s Guide

Objective
Students will apply testing a paper roof using the examples and practice below.

Vocabulary
model, trial

Teaching Notes

• Model one response, then ask students to work independently and explain their choices with specific words or evidence.
• Teach the rule, discuss the worked example, and cover answers during practice.
• Use incorrect responses to identify which part of the rule needs another example.
• Allow approximately 25–35 minutes, including discussion and independent practice.

🧒 Student Worksheet

Concept and Helping Material

Big Idea
Read for meaning. Identify the topic, connect details, and use evidence to answer questions.

Read

A class builds two model roofs from equal sheets of paper. One sheet stays flat; the other is folded into ridges. Each rests between two blocks. The class adds identical counters one at a time and records when each roof bends.

The test compares shape while keeping the paper and span the same. If the folded roof holds more counters, the result suggests that folding affects the model’s strength. The class should repeat each design because small differences in placement could change a result.

A model helps examine a limited question. The result does not tell students how to build a safe full-size roof, which involves many other materials and forces. Repeated trials, consistent loading positions, and a clear definition of failure would make this classroom comparison more informative.

Vocabulary and Definition

• — a simplified representation
• — one performance of a test

Words to Learn

model, trial

Sentences to Fill In

1. The term for a simplified representation is ____.
2. The term for one performance of a test is ____.

Think & Respond Q&A

1. What differs between the two roofs?
2. What materials should be equal?
3. State the main idea in one sentence.
4. Name a detail that supports that idea.
5. Why add counters one at a time?
6. Does this model establish a safe design for a real house?
7. Explain one word using the passage.
8. What limitation or uncertainty does the passage identify?
9. Write a two-sentence summary without adding an opinion.

Hands-On Experiment or Activities

Read the passage aloud twice. On the first reading, solve unfamiliar words. On the second, group words into meaningful phrases. Then close the text and retell its central idea. Reopen it to check accuracy.

Reflection

• Explain one thing you learned.
• Write a developed paragraph applying the skill. Revise for precision, explain your decisions, and check whether another interpretation is possible.