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In this eBook Timmy, a ski bum, tackles the Common Core math standards of the 4th grade. Along the way he joins forces with Sarah, Chet, Sam, and Barry in problems including costs of skiing and food to eat before and afterwards, like yummy bacon, pizza, and candy. This eBook can be used for bell ringers to start the class, class discussion problems, or to have something for students to work on. There is one problem per Common Core math standard in this book and plenty of space to work on each problem. An answer key is also included. 34 total problems. 36 page PDF.
Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are valid only when the two decimals refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, e.g., by using a visual model.
Use decimal notation for fractions with denominators 10 or 100. For example, rewrite 0.62 as 62/100; describe a length as 0.62 meters; locate 0.62 on a number line diagram.
Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.
Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.