Writing Ratios Equivalent Ratios Rates Proportions Direct & Indirect Relationships Constant of Proportionality Writing Equations for Proportions Understanding Graphs of Proportions Problem Solving Scale Drawings & Similar Figures
Special Pairs of Angles Perimeter & Circumference Area of Rectangles Area of Parallelograms Area of Triangles Area of Trapezoids Area of Circles Mixed Review Area of Irregular Figures Area of Shaded Regions
3D Solids Cross Sections of 3D Figures Volume: Prisms & Cylinders Volume: Pyramids, Cones & Spheres Surface Area – Prisms Surface Area – Pyramids Surface Area – Cylinders Surface Area – Spheres More Practice/Review
Introduction to Probability Experimental and Theoretical Sampling Word Problems Probability of Compound Events Measures of Center Measures of Variation Mean Absolute Deviation
When are square roots first mentioned in K-12 mathematics? In the 7th grade math, there a couple of questions in the &amp;quot;2-D Geometry&amp;quot; that ask kids to find the radius amount given the Area of a circle, which of course, requires finding the square root. I first find them in 8th grade math, but did I miss it somewhere earlier? Thanks!
Dear Deb Yoast,
Thank you for your comment. Yes, solving equations using square roots as the inverse operation of squares is an 8th grade standard, so the questions found in 7th grade math, 2-D Geometry CW-HW file & Unit Test have been revised to include the circumference of a circle to find the radius or diameter of the circle. Please download an updated copy of each file at your earliest convenience. Thanks, again, for bringing this to our attention.
Kind regards,
Audra
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