Game Arithmetic Sequences Learning Center-Grade 6-9, features a Curriculum Mastery Game with 30 illustrated, topic-specific question cards; 1 laminated game board; and materials for four players; 4-panel guide, Write-On/Wipe-Off activities
16oz. For use with 100x oil immersion objectives. Contains no PCB compounds. Low fluorescence, low viscosity. Type A, at 150 centistokes, reduces any tendancy to trap air, especially helpful to beginning students. Air bubbles cause image degradation.