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- Grade Range
- 4th - 7th
- Rating
Students access web site and record various population statistics pertaining to a county in the USA of their choice. They use this data to set up and solve ratios. They compare data to make meaning of the numbers. Full Review »
- Grade Range
- 7th - 9th
- Rating
Students calculate real ratios that exist between the planets Earth and Mars. After a lecture/demo, students use worksheets and access Internet sites to do their calculations. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students measure the rate of diffusion and to calculate the surface area to volume ratios of varying cell sizes. The lesson is very clearly organized with a useful student worksheet provided. They perform a lab experiment which is clearly outlined. Full Review »
- Grade Range
- 4th - 5th
- Rating
Students use the phenomenological approach to complete the activities, calculate ratios and proportions and compare and contrast group data with class data. Full Review »
- Grade Range
- 2nd
- Rating
Students use knowledge of measurements and ratios to mix various combinations of liquid starch and glue. They chart their ratios, make observations, and write a summary of the activity. They mix their own batch of Crazy Putty to take home. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students examine and discuss the writing of ratios as fractions and where they can be found in the real world. They complete worksheets and a questionnaire, and calculate the mean, median, and mode scores for the class. Full Review »
- Grade Range
- 7th - 8th
- Rating
Students apply the concept of ration and percents to the distribution of letters contained in a box of Alphabits cereal. Students are given samples from the cereal box and tabulate the number of times each letter of the alphabet occurs and the total number of letters included in their sample. Fractions, ratios and percentages are calculated and individual data is compiled into class data. Full Review »
- Grade Range
- 11th - Higher Ed
- Rating
Students define ratios and how they apply in a business context. They practice ratios through an activity that involves financial data. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students review equivalent fractions and the rules for equivalent fractions. They are intrododuced to equivalent ratios. Students write examples of ratios from the board and they come to the board and write the correct equivalent ratios and give reasons for their choices. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students explore and investigate the Aurora Borealis or Northern Lights. They research the legends and myths that have sustained the aurora throughout history. Each student discovers how NASA scientists and engineers utilize satellite technology to measure and record data analysis of the Northern Lights. Full Review »
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