A virtual LEGO contest where students make creative artefacts, using 5 embodied symbols,
‘[ ]’, and substitution command were carried out. Elementary and middle school students as well as
mathematics teachers participated in the contest in different periods respectively. It took about 6
weeks in total to learn the basic symbols and submit the final artefacts. They were also to ask
questions by writing on the Q&A bulletin board or putting comments. After the learning period,
participants created their own artifacts for the last two weeks by using the symbols they learned and
finally submitted their final artefacts. Figure 6 shows the artefacts submitted by 6th grade students.