07 February 2025

Bond Angles


 ​I just taught an online lesson on bond angles across a period.  We explored how molecular shapes maximize distances between groups, why some molecules are bent instead of linear, and how trigonal bipyramidal structures have different bond angles. Fascinating stuff! #Chemistry

06 February 2025

Electrical experiments


 Just 10 minutes to recap the three electrical components ( resistor, bulb and diode) used to make the voltage vs. current graphs. Just as quick as drawing them using the @pascoscientific voltage current sensor and Capstone and three circuits made and experiments done in 10 minutes.

05 February 2025

A bit Dicey

 

Probability took a turn for the worse when the students had to work out the probability of throwing a number on different dice. They discovered that investigation was needed rather than making assumptions.

04 February 2025

Ball Bearings in freefall


Creating a strobe image of two ball bearings falling. One falls vertically and the other is propelled sideways. The camera used a flash on a strobe setting capturing an image every 1/15 of a second.

 

03 February 2025

All in a Heartbeat


 Taking an ECG on a student in A-Level Biology using the @pascocienctific ECG sensor. Using a digital stethoscope, the students could record and play back their heartbeat and tie this in with the ECG that they recorded.





02 February 2025

Oxytocin in Psychology


 A-Level Psychology: Oxytocin, the "bonding hormone," is naturally released during sex, childbirth, and breastfeeding. As a synthesized drug, it's been explored as a potential treatment for various psychiatric disorders. #Psychology #Oxytocin

01 February 2025

DBMS and GIS


 A-level Computing DBMS and GIS. Another real-world use for relational databases? Integrating them with GIS to pinpoint houses near a river, optimize delivery routes, or count homes in a school zone.

Why Internal Resistance Confuses Everyone (And How to Actually Understand It)

  Why Internal Resistance Confuses Everyone (And How to Actually Understand It) “Your battery says 9V… so why does your circuit only get 7.8...