Birthdays and the binary system: Exploring binary numbers in a real-world application
http://illuminations.nctm.org/LessonDetail.aspx?ID=L245
A lesson plan for grades 3 and 5 Mathematics
This lesson from Illuminations revolves around patterns and place value in the binary system. Students are drawn into mathematics by the “magical” ability to guess an unknown number and by the use of birthdays.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 3
- Goal 5: Algebra - The learner will recognize, determine, and represent patterns and simple mathematical relationships.
- Objective 5.01: Describe and extend numeric and geometric patterns.
Grade 5
- Goal 5: Algebra - The learner will demonstrate an understanding of patterns, relationships, and elementary algebraic representation.
- Objective 5.01: Describe, extend, and generalize numeric and geometric patterns using tables, graphs, words, and symbols.


