Exercise Brain: Frontal and Parietal lobes

Let’s now exercise our Frontal Lobes (that deal with working memory and attention, among other things), and Parietal Lobes (visual interpretation). (Basic brain anatomy here)

Quick!, count the number of times the number “6” appears below. Then, count the total of both “3”s and “7”s, trying to add the total number of both as you see either (this is, don’t just count all the “3”s, and then the “7”s)

1234467889974674657865876576576 3576573625432657346578436578342 2732188582735827456724687343828 7672878682768723682376783768267 2647648823178346432764876774653 7436574386581483627868653873465

The Answer will appear as a Comment on Friday. The most important thing here is not to get the right answer, but to try, since this type of exercise has been used by the military to improve attention for decades (now there are more advanced, computer-based, tools, but this keeps being fun).



  1. eleanor said

    just so i don’t forget – i got 33 and 58!

  2. Alvaro said

    Eleanor, very very close!

    6s: 33
    3s and 7s: 59

  3. Todd Latham said

    I got the same amount as Eleanor did.

  4. […] Other links: Take a survey from MITA to help determine clues to your strongest intelligences Ned Herrmann’s Whole Brain Model for thinking Edward de Bono’s thinking strategies Exercise your frontal lobe Another classic brain puzzle Learning and teaching strategies for different intelligences […]

  5. Wendy said

    33 and 57……….ummmmmmm

  6. Alvaro said

    There are 59 3s and 7s combined. Easy to miss one or two of them. Why don’t you print the exercise, and underline the 3s and 7s. The combined number of 3s and 7s, row per row, is:

    Row 1: 8
    Row 2: 11
    Row 3: 9
    Row 4: 12
    Row 5: 10
    Row 6: 9

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