Thin film interference manifests itself in a wide range of visually pleasing situations in everyday life (in the colored effects caused by a drop of oil on water, in soap bubbles, etc.) and is also involved in important technical applications (semi-reflecting mirrors, anti-reflection lenses, etc.). Yet, despite its familiarity, high school…

Learning the analysis of electrical circuits represented by circuit diagrams is often challenging for novice students. An open research question in electrical circuit analysis instruction is whether color coding of the mathematical symbols (variables) that denote electrical quantities can improve circuit analysis learning. The present study…

The author and her class used chalk pastels before, in the typical manner with much blending and mixing of color. She felt her high-school class needed to try another technique with no smudging with tissues, no using tortillons (blending stumps), no soft color merging. All too often, young artists blend too many colors together and lose the…