Students will classify rational numbers and irrational numbers with this engaging real number system activity. They'll use two colors from the key to color-code 28 numbers as rational vs irrational. Finally they'll explain their reasoning and approximate values as they analyze the numbers more closely.

One OPTIONAL way you can scaffold this activity is by having students first use colored transparent counters to indicate the two types of numbers before they color the final product. This activity is a great way to get students working cooperatively in pairs or small groups, while having meaningful math discussions.

A variety of 28 positive and negative real numbers are included:

• Fractions
• Mixed Numbers
• Decimals
• Integers
• Square Roots
• Cube Roots
• Expressions with Pi

Students are provided with a worksheet with space to record their answers and evidence to prove how they sorted 3 of the rational numbers and 3 of the irrational numbers. They'll also demonstrate their understanding of identify the approximate value of rational and irrational numbers by plotting 6 values on a number line.

Do you have a question about this resource? Please email me: cassie@missmathlady.com