I wrote this 18-question circuit as a request for my AP Calculus colleague Angie Garrett to be used across math and science classes and grades in her school. The circuit starts easy "How many seconds are there in 3.5 minutes?" and builds from there.
The students will need to know how many seconds are in a minute, how many minutes in an hour, how many hours in a day, how many feet are in a mile, how many feet are in a yard, how many centimeters in a meter, and how many millimeters in a centimeter. Students can and should be responsible for these equivalencies, in my opinion. [NOTE: If the teacher wants, equivalencies can be written on the board as students request them. I would NOT allow students to look these up on the internet as conversion calculators abound. In a testing situation (SAT, ACT, AP, e.g.) students can not access the internet, therefore they should not use the internet for conversions. A four-function calculator should be allowed, however. If students/classrooms have only scientific or graphing calculators, that would be ok too.]
There are other equivalencies embedded in the problems such as how many liters are in a gallon, how many Euros in a dollar, etc.
I hope you and your students get some great practice with this circuit!
I do not include an answer key since the answers are imbedded in the circuit; it is how students move from one question to the next. This element of self-check is essential because it requires students to ask questions if they can not find their answer. The only thing the teacher needs to do is work the circuit ahead of the students to decide what, if any, vocabulary / notation / concepts should be addressed before the students begin. You will love the sounds of your students as they work through a circuit!
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