Ratios, proportions, and percents
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Beam to Moon (Ratios and Proportions)
Apply ratios and proportions to find the weight of a person on the moon (or on another planet). Weigh an object on Earth and on the moon … and weigh the person on Earth. Then set up and solve the proportion of the Earth weights to the moon weights.
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Beam to Moon (Ratios and Proportions)
Apply ratios and proportions to find the weight of a person on the moon (or on another planet). Weigh an object on Earth and on the moon … and weigh the person on Earth. Then set up and solve the proportion of the Earth weights to the moon weights.
- METRIC
- Lesson Info
- Launch Gizmo
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Distance-Time and Velocity-Time Graphs
Create a graph of a runner's position versus time and watch the runner run a 40-yard dash based on the graph you made. Notice the … connection between the slope of the line and the velocity of the runner. Add a second runner (a second graph) and connect real-world meaning to the intersection of two graphs. Also experiment with a graph of velocity versus time for the runners, and also distance traveled versus time.
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Distance-Time and Velocity-Time Graphs
Create a graph of a runner's position versus time and watch the runner run a 40-meter dash based on the graph you made. Notice the … connection between the slope of the line and the velocity of the runner. Add a second runner (a second graph) and connect real-world meaning to the intersection of two graphs. Also experiment with a graph of velocity versus time for the runners, and also distance traveled versus time.
- METRIC
- Lesson Info
- Launch Gizmo
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Estimating Population Size
Adjust the number of fish in a lake to be tagged and the number of fish to be recaptured. Use the number of tagged fish in the catch … to estimate the number of fish in the lake.
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Multiplying with Decimals
Multiply two decimals using a dynamic area model. On a grid, shade the region with width equal to one of the decimals and height equal to … the other decimal and find the area of the region.
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Ordering Percents, Fractions and Decimals
Compare and order numbers represented as percents, fractions, and decimals using area grids and a number line.
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Ordering Percents, Fractions and Decimals Greater Than 1
Compare and order numbers greater than 1 using area grids and a number line. Examine the numbers represented as percents, improper … fractions, and decimals.
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Part:Part and Part:Whole Ratios
Compare a ratio represented by an area with its percent, fraction, and decimal forms.
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Percent of Change
Apply markups and discounts using interactive "percent rulers." Improve number sense for percents with this dynamic, visual … tool. Reinforce the original cost (or original price) as the baseline for percent calculations.
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Percents and Proportions
Find a part from the percent and whole, a percent from the part and whole, or a whole from the part and percent using a graphic model.
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Percents, Fractions and Decimals
Compare a quantity represented by an area with its percent, fraction, and decimal forms.
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Proportions and Common Multipliers
Complete a proportion using a graphical model. Use counters to fill cells in the numerators and denominators given. Use the visual … pattern to determine how many counters to put in the missing numerator or denominator.
