The Arizona STEM Acceleration Project

Design Dream Home Part 2 of 2.

Design Dream home

An 7th grade STEM lesson

Deepak Arora

05/15/2023

Notes for teachers

• Context: This lesson takes place in a classroom for 2 hours
• Students may work individually or in small groups of 2.
• An emphasis on the draw the dream home on the graph sheet according to the proportional dimensions of the actual home they created in Sketchup.com.
• Students need to use the appropriate scale factor so that if fits the graph sheet nicely neither too small nor too big.
• Give them the instructions on how to create a proportional model on the graph sheet.
• Dream House Part 1

List of Materials

• oversized Graph Sheets
• Tape Measure
• Calculator
• Glue Sticks
• Pencil
• Ruler
• Tape
• Scissors

Standards

Next Generation Science Standards:

∙ MS-ET-1. Define the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the natural environment that may limit possible solutions.

∙ HS-ET1-2. Design a solution to a complex real-world problem by breaking it down into smaller, more manageable problems that can be solved through engineering.

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Standards

Common Core Math Standards

∙ 7.RP.A.2 Recognize and represent proportional relationships between quantities. ∙ 7.RP.A.3 Use proportional relationships to solve multi-step ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.

∙ 7.G.A.1 Solve problems involving scale drawings of geometric figures, including computing actual lengths and areas from a scale drawing and reproducing a scale drawing at a different scale.

∙ G.MG.A.2 Apply geometric methods to solve real world problems.

Objective(s):

Students will be able to

1. convert full size measurements to scale size and scale size to full size using proportions.
2. Recognize scaled drawings of items as a similar figure to the original item.
3. Use spatial relations in their design to allow for appropriate spacing.
4. Create an orthographic drawing of a house.
5. Use the engineering design process to create a prototype of a house.

Agenda (2 hours)

1. Introduction to scale conversion and scale factor.
2. How to find the dimensions of model using actual house and scale factor.
3. How to use the graph sheets for drawing a house.

Driving Question

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How will you draw the floor plan on graph sheet of the home you created in Sketchup.com?

Day 1:

As Students has already designed the house last week in Sketchup.com. After designing the home tell students to draw the floor plan of the house on the graph sheet as per the scale chosen. They will measure all the dimensions of the house and change them to the dimensions of the model with the help of format provided using the appropriate scale factor. It will take them a day or two to find the dimensions and draw the layout/floor plan.

Day 2:

After finding the dimensions of the model the students will draw the floor plan on a graph sheet. This will help students to translate the information from one to another form.

Hands-on Activity Instructions

Students will convert the dimensions of the actual house to the dimensions of the model using an appropriate scale factor.

Students will construct the layout/floor plan on a graph sheet.

Assessment

Rubric for grading with conversion sheet.

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Differentiation

Draw the floor plan of your home where you are currently living. How will you convert them dimension from a big home to the model.

Remediation

Extension/Enrichment

How will you convert this to a prototype. Can you design the inside and paste the pictures of the appliance and furniture to decorate more.

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