Ten Frames Math Manipulatives Set - Dual-Color Magnetic Counting Blocks & Place Value Trays for Kindergarten Early Addition

Build rock-solid early number sense, subitizing, and base-10 mental regrouping with tactile interlocking ten-frames! Features dual interlocking 5x2 trays and 30 tactile counters with concave finger dishes, giving kindergarten and 1st-grade learners an unshakeable concrete foundation for addition and subtraction. Research consistently proves that children who learn math through structured visual arrays develop superior mental math agility. The StackCalc Ten-Frames Set gives early learners a tactile, physical anchor for base-ten arithmetic, addition, subtraction, and place value. Blocks stack with precision sockets; the modular storage box and sliding lid snap securely for transport. ============================================================ PHYSICAL DIMENSIONS & WEIGHT SPECIFICATIONS: ============================================================ • Width: 84.0 mm (3.31 in) • Height: 168.0 mm (6.61 in) • Depth: 12.0 mm (0.47 in) • Net Weight: 195 g (6.88 oz) • Packed Shipping Weight: 310 g (10.9 oz) ============================================================ WHAT’S INCLUDED IN THE 45-PIECE ARITHMETIC SET: ============================================================ • 1x 3x1 Modular Storage Box (126 x 42 x 36 mm) with slide-on snap lid • 2x Interlocking Ten-Frame Trays (5x2 grid with tactile square well sockets) • 40x Tactile Square Counter Tiles (18x18 mm square tiles with concentric finger dishes and dual-sided color contrast) • 2x Solid 2U Carry Cubes (Base-ten regrouping blocks) • 1x Archival Kit Reference & Schematic Card featuring full parts inventory, replacement Part IDs, and California QC inspection stamp • 12x Laminated Early Math Problem Cards (Subitizing, Number Bonds, and Make-10 drills) • 1x Comprehensive Kindergarten & 1st Grade Teacher Activity Guide