TODAY 3rd Hour: Father and daughter bond on high wheel bikes. NASA trailblazer Katherine Johnson’s “remarkable journey.” 12-year-old graduates high school and college.

<p>As part of our series “Dad’s Got This,”  Craig Melvin sits down with a father and daughter who bond over high wheel bikes and are making history. Plus, Al Roker speaks with the two daughters of NASA mathematician Katherine Johnson — what it was like growing up with a trailblazing mom. Also, meet a 12-year-old who has already graduated from high school and college.</p>