A Lesson Plans Page Math Lesson Plan, Thematic Unit, Activity, Worksheet, or Teaching Idea in Mathematics, Maths

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Objective: The students will be able to estimate and measure the amount of water their family, and their class waste while they brush their teeth.

Materials: empty 1/2 gallon milk jugs, new toothbrushes or ones from home, toothpaste, dishpan

Anticipatroy Set: Ask the students how many times they brush their teeth a day and who else in their family brushes their teeth. Ask the students how many of them leave the water running when they brush their teeth. Ask the students how many different ways they could measure the water they use while brushing their teeth.

Concept and Development: Before they brush their teeth have the students estimate how much water they will use. Have the students brush their teeth and catch the running water in a dishpan. Then using the half gallon milk jugs measure out the water. Have the students share what their measurements were and have them discuss why the measurements vary. After sharing the data have them find how much water the average person in the class uses each day while brushing their teeth.

Practice: Have the students estimate how much water their entire family uses, then have them measure how much their family actually uses. Share they data with the rest of the class the next day.

Assessment Give the students example problems and have them use the class data to solve the problems. Observe the students and ask them how they arrive at their answers.

Closure: Ask them ways they can save water while they brush their teeth. Have the students discuss what other forms of measurement they could have used.

LessonPlansPage.com would like to take a moment to let you know about Concordia University's new Master’s Degrees in Education that you can complete online in just one year!

Find Out More!