Understanding Ratios and Proportions

The video lesson covers color mixtures and equivalent ratios. It begins with an introduction to color mixing and mental math exercises. The teacher demonstrates how to perform mental multiplication and explores color mixing activities using different ratios. Students learn about equivalent ratios and create new color recipes for various shades. The lesson concludes with a summary and homework instructions.

What is the result of mentally calculating 6 times 15?

• 75

• 105

• 90

• 120

If you double the ratio of 5 blue to 15 yellow, what is the new ratio?

• 10 to 15

• 10 to 30

• 15 to 30

• 5 to 30

What is the result of tripling the original ratio of 5 blue to 15 yellow?

• 15 to 45

• 10 to 30

• 25 to 75

• 20 to 60

To create a bluer shade of green, which ratio should you use?

• 20 blue to 40 yellow

• 10 blue to 20 yellow

• 15 blue to 30 yellow

• 5 blue to 15 yellow

Which mixture will result in the same shade as the perfect purple with 8 blue and 3 red?

• 12 blue and 4 red

• 16 blue and 9 red

• 24 blue and 9 red

• 8 blue and 6 red

What is the equivalent ratio of 10 yellow to 2 blue?

• 5 to 1

• 10 to 5

• 2 to 1

• 1 to 5

How can you make a darker shade of blue using the ratio of 2 blue to 1 white?

• Add equal parts of blue and white

• Add more white

• Add more blue

• Keep the ratio the same

What is the result of multiplying both parts of the ratio 8 blue to 3 red by 2?

• 12 blue to 6 red

• 16 blue to 6 red

• 8 blue to 6 red

• 16 blue to 9 red

Which of the following is NOT an equivalent ratio to 5 blue to 15 yellow?

• 5 to 20

• 20 to 60

• 15 to 45

• 10 to 30

What is the correct way to express the ratio of 3 cups of milk to 2 bananas?

• 2 to 3

• 2 to 1

• 3 to 2

• 1 to 2