www.wintergreen.ca LC133 ■ ADDITION LEARNING LOCKS Unlock addition skills—with a simple turn of the key! Our self-correcting locks and keys make learning addition facts to 20 a breeze! Kids simply pick a key…solve either one of the 2 problems printed on it…then find the lock with the answer. If they’ve solved correctly, the key will turn and the lock will open—for instant reinforcement! Set of 20 locks and 39 keys; locks are 31 ⁄4" each. 69.95 Grade Level 1 K Each key has 2 problems—solve either one and the lock opens! TW450X ■ ALL FACTS MATH FLASH CARDS - COMPLETE SET Help students learn math facts with these self-checking flash cards! Each card features a math problem on the front and an answer on the back, so it’s easy for students to work independently. Plus, the cards cover each fact through 12—to help students master every math fact. You get all 4 sets, each with 156-169 cards packed in a handy storage box. Cards measure 3" x 6". 62.95 Each set is also available separately. TW451 ■ Addition 16.95 TW453 ■ Multiplication 16.95 TW452 ■ Subtraction 16.95 TW454 ■ Division 16.95 Answers on back! LL696 n NUMBER LINE SLIDER BOARDS (0-20) - SET OF 10 Perfect for use on desktops or in learning centres, these kid-friendly number lines provide hands-on practice with skip-counting, addition and sub- traction, mental math and more! Each easy-to-use board features numbers 0 to 20, plus a sliding pointer. We’ve even included 48 practice problems with answers on back for convenient self-checking. Set includes 10 slider boards; each board measures 2" x 11". 54.95 LL699 ■ NUMBER LINE SLIDER BOARDS (0-100) - SET OF 10 Higher number skills come easy when kids practice with our interactive number lines! Each board covers numbers 0-100 and features a sliding pointer, so it’s fun to practice adding and subtracting within 100, solving simple word problems, adding and subtracting multiples of 10, and more! We’ve even included 72 leveled problems for extra practice—complete with answers on back. You get 10 boards; each is 21 ⁄2" x 141 ⁄2". 61.95 Grade Level 1 2 3 Grade Level 1 2 AA391 n NUMBER LINE MATH ACTIVITY CHART Help students visualize math con- cepts…and give them hands-on practice, too! Double-sided number cards let you create a customized number line showing any sequence of numbers from 1 to 120, so children can count by ones, practice skip-counting by fives…and more! Plus, you get activity cards that provide focused practice with basic skills, including addition and subtrac- tion, more than/less than, sequenc- ing and more. The 18" x 533 ⁄4" chart comes with over 140 cards and 6 manipulatives for counting and problem solving. 91.95 Grade Level 1 K 2 Grade Level 1 2 3 4 5 Math operations & algebraic thinking 43