Today’s optical illusion challenges you to find the hidden "28" among a grid of "23s." It’s a fun way to test your focus and attention to detail while giving your brain a quick workout.
Kafka, D. and Papageorgiou, T. (2025) The Pedagogy of Skills in the 21st Century: Practices for Integrating Them into the Teaching Process. Creative Education, 16, 56-70. doi: 10.4236/ce.2025.161004 .
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