Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.
Related Courses
Related Access Points
Related Resources
Educational Game
Educational Software / Tool
Formative Assessments
Lesson Plans
Original Student Tutorial
MFAS Formative Assessments
Students solve a problem by mentally adding ten to a two-digit number.
Original Student Tutorials Mathematics - Grades K-5
Explore strategies to add or subtract ten from a two-digit number in this interactive tutorial.
Student Resources
Original Student Tutorial
Explore strategies to add or subtract ten from a two-digit number in this interactive tutorial.
Type: Original Student Tutorial
Educational Software / Tool
This interactive Flash applet helps children learn grouping, tally marks, place value, addition, and subtraction. Students help the alien spaceship move cows into corrals by counting by 5s and 10s. They also can apply those grouping skills to practice adding and subtracting two-digit numbers with regrouping. Audio cues and prompts reinforce the user's actions and facilitate counting and the development of math language.
Type: Educational Software / Tool
Parent Resources
Educational Software / Tool
This interactive Flash applet helps children learn grouping, tally marks, place value, addition, and subtraction. Students help the alien spaceship move cows into corrals by counting by 5s and 10s. They also can apply those grouping skills to practice adding and subtracting two-digit numbers with regrouping. Audio cues and prompts reinforce the user's actions and facilitate counting and the development of math language.
Type: Educational Software / Tool