A few ideas.
I'd estimate your ranks between 25k and 30k.
(;GM[1]FF[4]SZ[19]AP[SmartGo Kifu:2.0.1]GN[2012-10-12a]PW[Cody]PB[Ken]DT[2012-10-12]KM[6.5]RU[AGA (Area)]ID[ch0]CH[1];B[dd]
;W[kd]C[For a beginner I'd suggest to take the corners first.]SQ[pc][pd][qd][qp][pp][pq][dq][dp][cp];B[np]SQ[pp][pq][qp]TR[qq][qo][po][op][oq]C[Right idea, though still a bit far from the corner. The most common corner plays are 4/4 and 3/4 (square), some less common corner plays are 3/3, 3/5 or 4/5 (triangle). In some special situations very advanced players also play 6/4, but I'd not recommend this for beginners.];W[nh]C[Corners first, then edges. Applies to many later moves as well.];B[ej];W[nm];B[jp];W[gh];B[dh];W[lo];B[jn];W[gk]
;B[gl]C[Too early for a contact fight. There are still much bigger points (see squares)]SQ[pd][qd][qc][pc][dp][dq][cp][cq][lq][pp];W[hl]C[Good! The proverb goes "on tsuke play hane", a very basic shape];B[gm]C[Good! The proverb goes "on hane extend", also a very basic shape];W[lq]C[Good! separate your opponent's stones.];B[hk]C[Not appropriate in this moment. After the cut at m3 the marked o4 stones cries for help.]SQ[np][pp][pq][qp];W[ik];B[fk];W[gj]
;B[hj]C[No need to play here since the ladder goes for white. Consider to play in the largest open areas]SQ[pc][pd][qd][cp][dp][dq];W[hi]
;B[ij]C[Same as before. Learn what the ladder is and for exercise try to read it out. Ladders often occur in a game but are very rarely played out. Ladders are an excellent pattern to practise reading];W[jj];B[il];W[ii]
;B[hm]C[Still large open areas that are asking for stones to be set];W[ko]
;B[jk]SQ[jl]C[Try to ask yourself about the purpose of this stone. After this move white can put two stones into atari, so the black stone is lost.];W[jl];B[hk];W[kk];B[gq];W[jo]
;B[po]SQ[io][jp][jn]C[Well, finally help appears, though a bit late, since white can now cut the two marked black stones.];W[nq]SQ[io][jp][jn][jo][ko]C[Cut. The proverb goes "connect your stones and cut your opponent's stones". Remember this shape.];B[oq];W[mp];B[no];W[on];B[oo];W[pn];B[qo];W[or];B[nr];W[pq]
;B[mq]
;W[pp]C[Just try to figure out whether the white stones can survive here. If you find out that white cannot live here, you'd want to play elsewhere, e.g. cut at j5. And have I already mentioned that there are still large open spaces? Guess you got the point. Before picking up fights for a few points, take the big points.];B[pr];W[im];B[mr];W[in];B[io];W[ip];B[ho];W[hp];B[gp]
(;W[gn]C[see alternative];B[hn]C[yes, connect your stones (end of comments)];W[hl];B[fn];W[el];B[il];W[jm];B[dl];W[fl];B[fj];W[hl];B[em]
;W[jq];B[qq];W[qn];B[iq];W[kp];B[jr];W[hq];B[hr];W[ir];B[is]
;W[kr];B[iq];W[jp];B[gr];W[ir];B[js];W[fo];B[eo];W[fp];B[fq]
;W[ep];B[dp];W[eq];B[dq];W[do];B[en];W[er];B[dr];W[fr];B[dk]
;W[gs];B[es];W[ks];B[iq];W[cn];B[go];W[ir];B[hs];W[cm];B[cl]
;W[bl];B[bk];W[am];B[bo];W[cj];B[bj];W[di];B[ei];W[ch];B[dj]
;W[ci];B[dg];W[cg];B[cf];W[df];B[ef];W[de];B[ce];W[ee];B[bg]
;W[eg];B[eh];W[bh];B[be];W[ag];B[af];W[bf];B[ae];W[cd];B[ah]
;W[ai];B[bd];W[ak];B[bg];W[aj];B[ck];W[bi];B[bn];W[bm];B[co]
;W[cc];B[bc];W[cb];B[bb];W[ab];B[ah];W[al];B[ag];W[ec];B[mo]
;W[fh];B[ed];W[fe];B[db];W[dc];B[pf];W[fi];B[od];W[ff];B[dm]
;W[ne];B[oe];W[pd];B[qd];W[pe];B[pc];W[qe];B[re];W[qf];B[qg]
;W[of];B[og];W[pg];B[nf];W[rf];B[rc];W[qh];B[ph];W[rg];B[nd]
;W[pi];B[oh];W[ng];B[pf];W[mf];B[me];W[of];B[oi];W[oj];B[pf]
;W[ni];B[qg];W[qj];B[lf];W[pg];B[of];W[ob];B[ld];W[oc];B[pb]
;W[qb];B[qa];W[rb];B[qc];W[se];B[sd];W[ra];B[pa];W[mc];B[lc]
;W[rd];B[sc];W[oa];B[re];W[nc];B[sf];W[sg];B[se];W[md];B[mb]
;W[ne];B[sa];W[le];B[kc];W[jd];B[jc];W[ic];B[id];W[kf];B[je]
;W[ke];B[hc];W[hd];B[ib];W[ie];B[ic];W[gd];B[jf];W[gc];B[gb]
;W[fb];B[kn];W[lm];B[fa];W[hb];B[ha];W[ea];B[ga];W[ja];B[ia]
;W[la];B[kg];W[lg];B[kb];W[ka];B[ma];W[ro];B[if];W[he];B[da]
;W[eb];B[rp];W[so];B[sp];W[ba];B[ac];W[rn];B[lp];W[iq];B[lr]
;W[kq];B[ln];W[mp];B[mn];W[fm];B[ek];W[hj];B[aa];W[ca];B[km]
;W[kl];B[ll];W[mm];B[nn];W[mk];B[nb];W[na];B[lb];W[ig];B[ab]
;W[sb];B[sa])
(;W[hn];B[go];W[gn];B[fn];W[jm]))