Besides producing delicious lemon bars, this recipe for Classic Lemon Bars from the Food Network is also a great opportunity to think about geometry and numbers. The recipe makes 24 bars, and we’re supposed to bake the whole thing in a 9 by 13 inch pan….
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There’s still nothing like experiencing math in the context of of simple cash purchases. I say “still” because of the plethora of available extra-curricular math resources like competitions, online programs, manipulatives, etc. In our age dominated by credit card and online purchases, many kids don’t have the opportunity to develop the skills of making simple arithmetic computations in real time while talking to people….
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What a great exercise it would be for a child to figure out how to “model” this wall with only equilateral triangles and squares. This is exactly the kind of thinking that the writers of the Common Core Math standards illustrate in the draft of their Geometry Progression for Grades K-6, pp. 7, 11-12. Geometiles™ were used for the modeling task, as shown above….
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As we huffed and puffed our way up the hill, we saw this sign. I thought this would be a good time to start talking about measuring angles with my incoming 4th grader. What would happen if the cars were parked at an angle of 180 degrees to the curb? What about 0 degrees? How many…
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