Ep:18-All Things Abacus

09/10/2025 1h 39min

Listen "Ep:18-All Things Abacus"

Episode Synopsis

The meeting focused on Lynette's workbook project progress, which now includes both printed and dry-erase versions with complete answers that Tamilu will review for errors. The group extensively discussed different math teaching methods, particularly comparing traditional approaches with the Abacus method for addition, subtraction, and division problems. They concluded by examining educational practices including the effectiveness of timed tests versus conceptual understanding and the importance of collaboration between teachers, parents, and students.Workbook Project UpdatesLynette's sequential book progress with both printed and dry-erase versionsComplete answer keys creation and error checking processBraille adaptation possibilities for the workbooksTeaching Methods ComparisonTraditional vs. Abacus approaches for addition and subtractionNew math strategies including left-to-right calculation methodsNumber bonds, place value concepts, and expanded form techniquesBreaking down numbers into tens and ones for easier computationAbacus TechniquesMaking 5s and 10s as core conceptsAddition and subtraction strategies using decomposition methodsFlexibility in calculation direction (left-to-right vs. right-to-left)Visual representation using cats in trees to illustrate number conceptsDivision problem-solving using missing factor approach rather than traditional divisionAdvanced ConceptsTwo-digit number handling in division problemsMultiplication using distributive propertiesComplex multi-digit calculations and "looping" techniquesSubitizing (instantly recognizing numbers without counting)Educational PhilosophyAllowing students to explore different problem-solving approachesCriticism of timed tests prioritizing memorization over understandingThe importance of teacher-parent-student collaborationChallenges in test-focused education systemsHistorical context of abacus development from Mesopotamia to 16th century Japan