Prepare the header strip:
Cut/break the header strip into two pieces, one 3 pin and one 8 pin. It will be easier to solder if you insert it into a breadboard - long pins down
Add the breakout board:
Place the breakout board over the pins so that the short pins poke through the breakout pads
Be sure to solder all pins for reliable electrical contact. We'll start with the main 8 pins for power & the I2C/SPI interface.
(For tips on soldering, be sure to check out our Guide to Excellent Soldering).
If you want to have the board be more mechanically stable, or want to use the ADC pins, solder in the 3 ADC pads too