Understanding Bar Graphs and Patterns

The video tutorial for third graders covers a math lesson on bar graphs, area, and partitioning rectangles. It begins with a warm-up exercise focusing on estimation skills, particularly in subtraction. The lesson progresses to setting up and graphing data using a bar graph, with Jasmine's homework minutes as the data set. Students learn to choose appropriate scales for their graphs. The tutorial concludes with a hands-on activity using pattern blocks to create a scaled bar graph, reinforcing the concepts taught.

What is the estimated difference between 362 and 258?

• About 50

• About 150

• About 100

• About 200

Which pair of numbers has a difference less than 200?

• 899 and 782

• 362 and 258

• 115 and 49

• 598 and 382

What scale is suggested for Jasmine's bar graph?

• 10 minute intervals

• 5 minute intervals

• 15 minute intervals

• 1 minute intervals

How many minutes did Jasmine spend on homework on Wednesday?

• 45 minutes

• 35 minutes

• 40 minutes

• 20 minutes

Where should the bar for Monday's homework time be placed on the graph?

• At 50

• Between 30 and 40

• At 40

• Between 40 and 50

What is the first step in creating a scaled bar graph with pattern blocks?

• Draw pictures of the blocks

• Sort the blocks by color

• Sort the blocks by shape

• Count the total number of blocks

What color is the hexagon pattern block?

• Red

• Blue

• Yellow

• Green

If you have more than seven of any shape, what scale should you use for your graph?

• 1 unit per block

• 10 units per block

• 5 units per block

• 2 units per block

What should you do after completing your graph on page 79?

• Take a picture and upload it

• Write a summary

• Erase it

• Draw pictures of the blocks

What is the color of the trapezoid pattern block?

• Blue

• Red

• Green

• Yellow