PORTSMOUTH, N.H., March 9, 2021 /PRNewswire/ -- Heinemann, a division of learning technology company Houghton Mifflin Harcourt (HMH), today announced the expansion of its catalog of resources for ...
PORTSMOUTH, N.H., Nov. 10, 2025 /PRNewswire/ -- Heinemann today announced that California Math Expressions has officially been approved by the California BOE for adoption in K-6 classrooms across the ...
Backed by a decade of research funded by the National Science Foundation on how to effectively teach students math from an early age, Math Expressions was developed by Dr. Karen Fuson, Professor ...
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