Explore length, mass, temperature and capacity using customary and metric scales. Features cards with vocabulary, abbreviations, units, rulers and equivalencies. Additional cards include bricks for non-standard measurement and 41 objects to measure--turn objects over to self-check. Chart includes 125 double-sided, write & wipe cards total. Also includes 10 plastic 12 inch rulers. Nylon chart with grommets features 3 storage pockets and Activity Guide. Measures 40.5"L x 31.5"H. Grades K+