1. The Rekennet (Arithmetic Net) A project of the Freudenthal Institute to professionalize primary school teachers Sponsored by the Government of Education Social Network Website

2. Why a RekenNet project? To improve the communication between teachers To improve communication between teachers and education specialists To let teachers learn from each other: horizontal professionalization To let didactical experts get a better view of daily profession of teaching in mathematics education To develop an integrated website

3. Network activities -meetings -Mathematics conference -Rekenmarket

4. The Rekenmarket Good example of horizontal professionalization Shows how network and web are intertwined

5. Digital Rekenmarket Didactical spinn-off of the Rekenmarket is distributed by the Rekenweb

6. From idea on the Rekenmarket To suggestion on the web

7. The Rekenweb: http://www.fi.uu.nl/rekenweb Student activities Teachers Recently news Parents

8. Problem of the month To ensure teachers they can find at least every month something to do in his or her class recognizable simple formed and easy to fulfill

9. How many chocolate eggs in the box? Students solutions Counting the front Counting the front and the layers Estimate the bottum, count the layers and multiply Find an equal pot with eggs and try Just guess

10. Hello everybody! I think I found the answer to the eggsquestion. I think the answer is 126. How do I know that? I measure the length of the box, which is: 23 cm but 2 cm is empty. Than I measure the length of one egg, which is 2,5 cm Than I measure the width of the box and I make a circle of eggs. I count the eggs, 14. As that has been done I fill up the length with eggs which is 9, and than I do 9 times 14 which is 126!!!!!!!!!! Goodbye, best wishes of Irene van Eerden Buninkdijk 11a 7109 CG Winterswijk tel:0543-565664

11. Applets Use the dynamic qualities of the internet; you do something extra over the workingssheets Motivating students

13. -Summary of the game -Learning strand -Grade -Theme -Kind of application -How and when to use it -Organization

17. Communication as main item of ICT Program calendar Colleagues data base Bulletinboard

18. Program calendar With the most important data of studying days, conferences, etc.

19. Colleagues database With addresses and experiences of colleagues To find each other

20. To discuss problems and to exchange ideas Bulletinboard

21. Conclusions - a networking project to professionalize primary school teachers - not technique as main point but quality of the content - content should be highly recognizable, easy to do and pleasant - another way of communicating with colleagues and experts