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47-130 mg/L NH4-N
to older children pushing the boundaries of what they can do without falling off
counting and patterning
squeezing and twisting
K'NEX, Intro to Gears Set, Age 8+, Set Shoe & Boot Cleaners & Drinking Bottles 47-130 mg/L NH4-N198 pieces to build 7 different gear models, including 2 spur gear, 2 crown gear and 2 chain and sprocket gear examples. Each set supports a team of 2 3 pupils: Key Stage 2. All packed in a strong storage tray with movable dividers and snap on transparent lid. Teacher's guide included. Please visit www. knexeducation. co. uk resources for Teacher's Guides and Lesson Plans.
US$ 35.00
US$ 169.50
US$ 13.00
