Richard Lahti

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Recent Posts by Richard

Fri Jun 16, 2017 6:50 AM in How to fit science in your schedule
Sonia: And if your principal/district disagrees? With NCLB and the emphasis on math/language arts, most of the districts around here alternate science and social studies ... 25 min every other day for a year OR 25 min a day for 1 semester. Other districts are confiscating science texts – I just read a TPA (teacher performance assessment, the final exam for teacher) at a district that does no sc...

Fri Sep 30, 2016 9:11 AM in Getting girls involved in Science
While I agree with the enthusiasm, it is hard to try to solve a problem if you do not understand it. Many of these reponses seem to indicate that girls have a lack of interest in STEM, this is far from the truth. Girls interest in STEM in the lower grades is not generally a problem. The pipeline used to start leaking in middle school, correlated (but not neccessarily caused by) with the introdu...

Sun Feb 01, 2015 12:11 PM in Science Fair
One other thought on your project - at least here in Minnesota, there are a number of state science benchmarks that could be better met by assigning class topics than by allowing free reign of topics (although free choice of topics seems to be another pillar of the NSTA position statement). If 2 or more students (or groups) do the same topic, we have several benchmarks asking students to compare ...

Recent Reviews by Richard

Sun Apr 30, 2017 9:53 PM
3 Decent article, not the best
Shows various weighs for different components. Does not appear to show how to write good descriptors for what is necessary to earn each particular level. Appears consistent with backwards design. Does not show good ways to translate a rubric to a grade.

Recent Public Collections by Richard


10 Resources

Resources on the teaching of evolution

Editorial: Coming Soon -- Isn't Your Science Just a Theory?
Type: Journal Article

Commentary: Let Fossils Make the Case
Type: Journal Article


11 Resources

The Second Dimension—Crosscutting Concepts
Type: Journal Article

The Second Dimension—Crosscutting Concepts: Understanding A Framework for K–12 Science Education
Type: Journal Article


3 Resources

Science Sampler: Using video games as an alternative science assessment for students with disabilities and at-risk learners
Type: Journal Article

Making Connections with Digital Data: Digital camera technology helps students draw connections between their hypotheses, data, and inferences
Type: Journal Article