Step 1: Tadasana
Typically, sun salutations begin in tadasana (aka "mountain pose" aka standing). Stand with your feet hips width apart - not together. The blocks should just barely fall in line with your heels. From here you can move into your forward fold (not pictured).
Step 2: Lunge
From forward fold, step one foot straight back. The blocks shouldn't really be in the way at all.
Step 3: Downward dog
Step all the way back to downward dog. Here, you can use the blocks to rest your head, ensuring your head is aligned with your arms (if you are working on that).
Step 4: Plank
Move into plank with your shoulders in front of your wrists, preparing for chaturanga. The bottom edge of the second block (the one closest to your feet) should line up with your hip crease.
Step 5: Chaturanga
Lower your chest down towards the ground (letting your hips go along for the ride) until your hips reach the blocks. You can even practice holding here an extra breath.
Step 6: Upward Facing Dog
Let your hips sink into the blocks as you press your chest up into upward facing dog. Or, better yet, skip this step and try to press back into plank!
Step 7: Back to Down Dog
Same as before, you can rest your head on the blocks.
Step 8: Step Forward into Lunge
Be sure to step forward, maintaining hips distance apart for the feet. Be mindful not to knock over the blocks. If you are moving into standing poses, such as high lunge or Warrior 2, the blocks shouldn't be much of a hindrance. Just make sure to have a second set for timesyou may need them under your hands.