Fractions and factors
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Comparing and Ordering Fractions
Use area models to compare and order fractions. Also see a visual representation of the least common denominator of two fractions. With … the visual representation of the LCD, this Gizmo can be an introduction to adding and subtracting fractions with unlike denominators.
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Comparing and Ordering Rational Numbers
Compare and order a rational number using an area model.
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Dividing Fractions
Divide fractions using area models. Adjust the numerators and denominators of the divisor and dividend and see how the area model … and calculation change.
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Dividing Mixed Numbers
Choose the correct steps to divide mixed numbers. Use step‑by‑step feedback to diagnose and correct incorrect steps.
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Estimating Sums and Differences
Estimate the sum or difference of two fractions using area models. Compare estimates to exact sums and differences.
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Finding Factors with Area Models
Find factors of a number using an area model. Reshape the area rectangle to see different factorizations of the number. Find the … prime factorization using a factor tree.
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Fractions with Unlike Denominators
Find the sum or difference of two fractions with unlike denominators using graphic models. Find the least common denominator graphically.
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Improper Fractions and Mixed Numbers
Represent a quantity given by a shaded region as an improper fraction and as a mixed number. Experiment with different shaded regions … sliced differently.
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Multiplying Fractions
Multiply two fractions using an area model. Vary the vertical area to change one fraction and vary the horizontal area to change the … other. Then examine the intersection of the areas to find the product.
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Multiplying Mixed Numbers
Choose the correct steps to multiply mixed numbers. Use the step‑by‑step feedback to diagnose incorrect steps.
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Order of Operations
Select and evaluate the operations in an expression following the correct order of operations.
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Ordering Percents, Fractions and Decimals
Compare and order numbers represented as percents, fractions, and decimals using area grids and a number line.
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Ordering Percents, Fractions and Decimals Greater Than 1
Compare and order numbers greater than 1 using area grids and a number line. Examine the numbers represented as percents, improper … fractions, and decimals.
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Percents, Fractions and Decimals
Compare a quantity represented by an area with its percent, fraction, and decimal forms.
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Real Number Line - Activity B
Use a number line to compare numbers. Change values by dragging points on the number line. Compare the opposites and absolute values of … the numbers.
