S-3209T Dry-Erase Board Compass黑板大圓規

S-5983T Clinometer 測斜器

Large classroom demonstration compass with metric and standard measurements. Use with a dry-erase marker. Great for drawing geometric patterns, measuring angles, drawing straight lines, drawing angles, etc. Suction cups to the dry-erase board to keep in place. Rotates freely on the board once suction cupped. Size 19-3/4" L x 4" W. Includes guide.
 
Determining heights of trees, buildings or other structures, and the depth of valleys is simple with this sturdy measuring device. Students point the clinometer at the top of a tree or building, pull the trigger, wait for the graduated disc to stop spinning, and then read the angle on the protractor. With this information, students can then calculate height by using the formula found in the guide included. Made of durable plastic for heavy classroom use.
 
   

S-6150T Polyhedra Dice多面體的骰子

S-6020T Dice Classroom Assortment多面體的骰子課室組

Pkg. of 6 different polyhedra dice in assorted colors. May be used for games, probability exercises, etc. Set includes one each of 4-, 6-, 8-, 10-, 12-, and 20-sided dice.
 
 
 
Large assortment of 97 dice including both traditional cube-style and polyhedra dice. Use for activities in probability, games, and for reinforcing math skills. Thirty-six 20-sided, seven 12-sided, twenty-eight 10-sided, seven 8-sided, ten 6-sided, and nine 4-sided. Colors may vary.
 

ST-13Teaching Abacus 教學用算盤 13檔(71 X 33 X 6cm)

ST-450Teaching Abacus 教學用算盤 21檔(111.5 X 33 X 6cm)

 

 
 
 
 
 
   

 

 

 
 
 
 
 
   

 

 
   
 
 
 
   
Page 1,2,3,4,5,6,7,8