Product name:Plastic Chalk Holder;Colors:colored;Material:Plastic;Type:Round;Length:9.5cm;Logo:Customized Acceptable;Usage:Chalkboard Writing;Application:Chalkboard;MOQ:100pcs;Package:loose packing;Color:Color;Place of Origin:CN;GUA;Size:93*18mm;Packing:
We did eventually receive everything and the quality was good, however due to them holding product hostage for more money and many issues with shipping, I would not order from them again. 2022 Halloween Series Cute Cartoon Pumpkin Ghost Design Gel Pens Black Blue Ink Pens ZF Promotion Gift ...
Chalk Holder, Chalk Clip Holder with Storage Box Colored Adjustable Chalk Keeper for Blackboard Teachers School Office 10pcs Features Chalk Holder- The colourful chalk holder also have a great appeal for children to draw and use.|Chalk Clip Holder with Storage Box-- friendly, durable, convenient...
In this research, we design a system to detect the writing behavior of teachers on a chalkboard. The developed system uses a smart chalk holder with a three-axis accelerometer (AccelChalk) and is used in actual lectures for evaluation. A technique for determining the physical state of learners...
Cheers US 10Pcs Sidewalk Chalk Holders Railroad Chalk Holder Plastic Adjustable Chalk Clip Holder for Teachers Students Office or Classroom Crayola Washable Sidewalk Chalk $15.95 current price $15.95 Crayola Washable Sidewalk Chalk 254.2 out of 5 Stars. 25 reviews ...
Sidewalk Chalk Holders Railroad Chalk Holder Plastic Adjustable Chalk Clip Holder for Teachers Students Office or Classroom KEDUDES Non-Toxic White and Colored Dustless Chalk (12 Per Box) and Premium Chalkboard Eraser, 2 Pack Add $16.69 current price $16.69 ...
The fixture forms handle portion, so that the blackboard of chalk holder and separation are feasible. The lower part of open and close member is ... JY Bea 被引量: 0发表: 2011年 Insert Holding System For example, the insert could include a screen, a window, a mirror, a poster frame...
Smart chalk holderClassroom collaborationIn this research, we design a system to detect the writing behavior of teachers on a chalkboard. The developed system uses a smart chalk holder with a three-axis accelerometer (AccelChalk) and is used in actual lectures for evaluation. A technique for ...
The chalk holder (10) is composed of an inner tube and an outer tube. The utility model has the advantages of simple structure, reliable use, convenient writing, loss reduction of chalks and favorable for the sanitation and cleanness and health of teachers.蔡关忠...
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