learning without tears little sponge cubes- get set for school- handwriting without tears, pre-k– sensory - 4th grade- for school or home use handwriting without tears "these sponges are just the right size for doing wet-dry-try on the slate chalkboard, blackboard with double lines, and our new magnetic lowercase & blackboard set. 100 (0.5"") square cubes per bag. learning without tears is an education company that offers a unique approach to teaching and learning, from crucial readiness skills in pre-k to foundational writing skills in elementary school. our programs support learners and teachers with engaging, effective products and instruction. the handwriting without tears k–5 curriculum is a proven success in making handwriting easy to teach and easy to learn. this research-based curriculum features developmentally appropriate, multisensory tools and unique teaching strategies that address diverse learning styles, ensuring all children succeed."