# Bake Sale

### Source Institutions

Children's Museum Of Houston

This activity helps learners learn about math through a real-world scenario. Three friends are baking cookies for their school’s bake sale. Using real or pretend cookies and plates, learners figure out how many plates they need to fit a certain number of cookies. Then they calculate how many batches of cookies they need to make for the bake sale. This activity guide includes questions to ask, extensions, resources, standards, and blackline masters.

### Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
\$1 - \$5 per group of students

Age Range:
Ages 8 - 11

Resource Types:
Activity, Lesson/Lesson Plan

Language:
English

### Materials List (per group of students)

• Plates
• Paper and pencils

### Subjects

• Mathematics
• Algebra
• Equations and Inequalities
• Data Analysis and Probability
• Data Analysis
• Data Representation
• Number and Operations
• Fractions
• Multiples and Factors
• Operations
• Problem Solving
• Reasoning and Proof
• Representation

### Informal Categories

• Food and Cooking

### Audience

• see
• touch

#### Learning styles supported:

• Uses STEM to solve real-world problems
• Involves hands-on or lab activities

### Other

#### Common Core State Standards for Mathematics:

• CCSS.Math.Content.3.OA.A.3: Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.(more info about this benchmark)
• CCSS.Math.Content.3.OA.C.7: Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.(more info about this benchmark)

• Free access