Aligned Resources

California Content Standards
Grade 4
Number Sense
1.0 Students understand the place value of whole numbers and decimals to two decimal places and how whole numbers and decimals relate to simple fractions. Students use the concepts of negative numbers

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Lessons (1)

Fraction Conversion

Students learn how to convert from fractions to decimals.

Audiences: Grades 3-5, Grades 6-8

Primary Subjects: Number and Operations

Related Topics: addition, converting, decimals, denominator, division, fractions, numerator, rational numbers, reducing fraction, subtraction

Activities (2)

Screenshot of Clock Arithmetic
Clock Arithmetic

Work with various types of clocks in order to learn about modular arithmetic operations. Parameters: Number of hours on the clock.

Audiences: Grades 3-5, Grades 6-8

Primary Subjects: Discrete, Number and Operations

Related Topics: addition, division, elapsed time, modular, multiplication, remainders, time

Screenshot of Number Base Clocks
Number Base Clocks

Visually explore counting and place value with different number bases, from base 2 to base 16, and up to the hundreds place using a clock like interface. The activity also allows you to look at the numbers on the clock in base 10 or in your other chosen base to explore the relationship between those values.

Audiences: Grades 3-5, Grades 6-8, Grades 9-12

Primary Subjects: Discrete, Number and Operations

Related Topics: arithmetic, counting, exponents, modular