Quick Start Expectations 1.Fill in planner and HWRS HW: WS: Puzzle 2.Get a signature on your HWRS 3.On desk: HW&RS, calculator, bin, LS packet 4.Finish our slicing investigation 5.Begin Partner Quiz – Finish tomorrow. * If you will be gone Friday you must finish the Partner Quiz on your own.

Partner Quiz Expectations Calculators okay Be respectful - Work together – No going ahead or dividing work – All answers and work needs to be the same Use your time well – 10 silent min, then work as a group When done - Learning facilitator brings one copy of PQ for teacher to check Correct errors as a group Staple all PQs together and turn in If you have extra time, you may quietly begin the HW

Review of Rectangular Prisms Where is a vertex? Where is an edge? Where is a face? Vertex Edge Face

Review of Rectangular Prisms Why is it called a rectangular prism? – The base of the prism is in the shape of a rectangle. Prisms are named by their base. How many faces does a rectangular prism have? ─ 6 faces How many vertices does a rectangular prism have? – 8 vertices How many edges does a rectangular prism have? – 12 edges

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Warm-up: What are the different 2D shapes that you can make by slicing a cube with one cut? Triangle, square, rectangle, non-rectangular parallelogram, pentagon, hexagon

Math Shorts Video – Slicing 3D Figures After the video, turn and talk to your partner about the different 2D shapes you can make from slicing a pyramid.

Square The same – always a square! Slice off a corner.

Did you notice… When you make a cut through four faces, you make a four-sided shape (rectangle or non-rectangular parallelogram). When you make a cut through five faces, you make a five-sided shape (pentagon). When you make a cut through six faces, you make a six-sided shape (hexagon). Circle, heptagon/octagon (anything with more than six sides).

Rectangle Square The same – always a rectangle! The same – always a square!

Slice off a corner.

Rectangle Triangle The same – always a rectangle! The same – always a triangle!

The same – always a rectangle! The same – always a circle! Rectangle Circle

Triangle Square The same – always a triangle! The same – always a square!

Rectangle Square Triangle, non-rectangular prism, pentagon, hexagon