Ratio and Proportion

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Cookie Calculations

Algebra Number Sense Math and Food Ratio and Proportion
In this activity, students will step into the kitchen to explore the math behind baking!   🍪They’ll estimate costs, calculate how many cookies can be made with a given am...

The 8th billion baby

Number Sense Math and Social Studies Current events Ratio and Proportion Data and probability
How fast is the world's population growing? Will the world's population size increase indefinitely?  Are all countries' populations increasing at the same rate? What are some of the...

Mental math tricks - part 2

Algebra Number Sense Ratio and Proportion Wow factor
36 x 25 = 900     480 x 25 =12,000    924 x 2.5 = 2,310 Can you see any tricks for doing these calculations in your head? An editable Word docx, solutions/hints, and a PowerPoi...

Spider-Man continues

Number Sense Ratio and Proportion Data and probability
Spider-Man: No Way Home opened on December 17, 2021.   How much did it cost to make? How much will it gross? Is the Spider-Man phenomena a guarantee for success? How would yo...

Microns and Masks

Algebra Number Sense Math and Science Math and Social Studies Current events Ratio and Proportion
  How big is one coronavirus? How big is a micron? How well do these masks protect against the virus? What can you observe about the size of particles mentioned? Why are we wearing masks?

Star Wars ... the story continues

Number Sense Ratio and Proportion Data and probability
The Rise of Skywalker will open on December 20, 2019.  How much did it cost to make?  How much will it gross? Is the Star Wars phenomena a guarantee for success?  How would you c...

Flag Art

Number Sense Geometry Math and Social Studies Math and Art Ratio and Proportion
A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday. In this activity (Flags) students measure; create whole number ratios for the official U.S. flag; decide h...

Which is the best deal?

Algebra Number Sense Math and Food Ratio and Proportion
How do you calculate and justify which deal is a better savings?  By dollars saved?  By percent saved? By some other measure? Looking at 4 different deals, students will need to...

Raising the bar

Algebra Number Sense Math and Science Ratio and Proportion
Recovery of the treasure from the 1941 sinking of the S.S. Gairsoppa was recently completed and a huge amount of silver was brought up from the ocean floor.  Let your students get a fe...
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