**Thank you Mother and Father for all of those diapers** - Which is a better deal, cloth or disposable diapers? How much did you cost your parents in diapers? In the future how much could your kid's diapers cost? Help students realize all that mom and dad went through in buying and changing diapers.

Students will compare the cost of buying disposable versus cloth diapers. They estimate how much they cost their parents in diapers and consider how much they will spend on diapers when they have a baby. This is a great math activity for Father’s Day or during the study of linear equations and introduction to systems of equations.

There is quite a bit of scaffolding built into the activity for students who might have limited experience with linear relationships and equation writing. Depending on the experience of your students you might reduce the amount of work in the tables or omit some of the questions in this part of the lesson.

**CCSS: 6.EE.9, 7.EE.4, 8.F.2, 8.F.4, 8.EE.8, HS.F-IF.8.B, HS.F-LE.2, HS.F-LE.5, MP7, MP8**

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**Father's Day Blueberry Muffins** is a short activity that asks students to change the amounts in a blueberry muffin recipe to multiples of and fractions of a ¼ cup measuring cup (**multiplication and division with unit fractions**). CCSS: 4.NF.4, 4th, 5.NF.7, 5th, 6.NS.1, 6th, 7.NS.2,