WHAT IS A REKENREK?
Directly translated, rekenrek means calculating frame, or arithmetic rack. Adrian Treffers, a mathematics
curriculum researcher at the Freudenthal Institute in Holland, designed it to support the natural
mathematical development of children and to help them generate a variety of addition and subtraction
strategies, including doubles plus or minus 1, making 10’s, and compensation. Students can use the rekenrek
to develop computation skills or solve contextual problems. Once children understand the operations
of addition and subtraction, and can model various situations, it is important that they automatize the basic facts by finding and using patterns and relationships. Unlike drill and practice worksheets and flashcards, the rekenrek supports even the youngest learners with the visual models they need to discover number relationships and develop automaticity.
THIS 63 PAGE PACK INCLUDES
-1/3 PAGE COLOR REKENREK IMAGES WHICH SHOW ALL ADDITION FACTS WITH SUMS TO 20
-SMALL COLOR REKENREK IMAGES (10 PER PAGE) WHICH SHOW ALL ADDITION FACTS WITH SUMS TO 20
-SMALL BLACK AND WHITE REKENREK IMAGES (10 PER PAGE) WHICH SHOW ALL ADDITION FACTS WITH SUMS TO 20