Blog

Visual learning analytics based on graph theory: Part I

All educational research and assessment are based on inference from evidence. Evidence is constructed from learner data. The quality of this construction is, therefore, fundamentally important. Many educational measurements have relied on eliciting, analyzing, and interpreting students’ constructed responses to assessment questions. New types of data may engender new opportunities for improving the validity and […]

Continue reading

Safari Javascript bug

Recently we found that our Lab framework caused the JavascriptCore of Safari 5.1 to crash. Safari 5.1 is the latest version available for OS X 10.6. If you have OS X 10.7 or 10.8, then you have Safari 6 which doesn’t have this problem. Too long; didn’t read solution: do not name your getters the […]

Continue reading

Scoring explanation-certainty items in High-Adventure Science

Note: This blog post was updated January 24, 2022, with new images, exemplar answers, explanations of items, and links to new teacher resource materials, including two High-Adventure Science modules that offer automated scoring for selected argumentation items. One of the questions unique to the High-Adventure Science project is what we call the explanation-certainty item set. […]

Continue reading

More things, more people, more easily

“The most exciting thing about the Next-Generation Molecular Workbench is that it lets us to do more things for more people, more easily.” -Chad Dorsey, CEO & President of the Concord Consortium Have you seen the latest Next-Generation MW interactives? We’ve taken the physics-based interactive simulations and made them better. The Next-Generation Molecular Workbench is […]

Continue reading

Welcome to our three Google Summer of Code students

Three international students will spend the summer coding for our open source projects. Through Google Summer of Code (GSoC), they’ll earn stipends from Google, plus get a coveted GSoC t-shirt and certificate. Expansion of SPARKS HTML5 circuit simulator Our HTML5 breadboard simulator allows students to experiment with basic DC and AC circuits using linear components […]

Continue reading

Share and embed—easily!

One of the key features of our Next-Generation Molecular Workbench is the ability to easily share and embed interactives in blog posts, learning management systems, emails and more—wherever you can paste a weblink or HTML code. Just two simple steps will have you sharing your favorite interactives with all your friends and colleagues in no […]

Continue reading